Mexican officials say they have arrested a leader of the feared Zetas drug gang, Jesus Enrique Rejon Aguilar. Mr Rejon is alleged to be the third in command of the Zetas, a drug gang formed by former Mexican special forces soldiers.He is suspected of involvement in various crimes and is being linked to the murder of US immigration agent Jaime Zapata, officials said.The US had offered a $5m £3.1m reward to find those behind the attack.